When the UE has obtained system information, it has to request an RRCconnection. Like it has no dedicated resources, the UE requests the connection using the Random Access Procedure using common uplink resources. At the end of the procedure, the UE is RRC connected UE and eNodeB are able to exchange data using dedicated radio … Read more
When the UE is powered up, it has to be RRC connected to be able to exchange data and signaling with the network. After the RRC connection, the Initial network attach allows to establish all the bearers to carry the data from the UE to the gateway. After the RRC connection, Signaling Radio Bearers (SRBs) … Read more
The Radio Resource Connection (RRC) protocol is implemented in the eNodeB and the UE. In WCDMA, it is implemented in the RNC! RRC is the highest protocol in the control plane on the radio side. The RRC protocol allows: 2 instances (eNodeB and UE) to exchange signaling messages. to forward signaling messages coming from the … Read more